With the help of the Season 5 premiere of "Masterchef" and another episode of "24: Live Another Day," Fox won the night in ratings in the key young-adults demographic.

The network averaged a rating of 1.5 among 18- to 49-year-old viewers, where a point equals about 1.3 million people. However, Fox came in third in overall viewership, behind "Bachelorette"-fueled ABC and a rerun-heavy CBS.

Photos

CaptionOn the set: Movies and TV

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A behind-the-scenes look at filming around the world for television and movies, as seen from the streets.

A behind-the-scenes look at filming around the world for television and movies, as seen from the streets.

A behind-the-scenes look at filming around the world for television and movies as seen from the streets.

On the Set: Movies and TV

A behind-the-scenes look at filming around the world for television and movies as seen from the streets.

"Masterchef" premiered to 4.1 million viewers and a rating of 1.4 in 18-49, down 33% from the 8-9 p.m. hour of its two-hour season opener a year ago, which was not on a holiday. The Memorial Day "24" episode fell 12% week-to-week to a 1.5, which gave it a tie with NBC's "American Ninja Warrior" premiere for the highest-rated show of the night in the key demo.

The 1.5 for "American Ninja Warrior" was down 12% from last summer's debut.

Winning the box-office derby on its opening weekend was a foregone conclusion for “Mission: Impossible — Rogue Nation,” leaving only the question of just how formidable a draw the latest installment in the Tom Cruise-led thriller franchise would be.

After receiving a Donkey Kong-style pounding from critics, "Pixels," the '80s video-game themed comedy starring Adam Sandler, was edged out at the box office on its opening weekend, failing to take the No. 1 spot from "Ant-Man," which earned an estimated $24.8 million.